Fire-extinguisher.



H. M. McCASLlN.

FIRE EXTINGUISHER.

APPLICATION FILED FEB. 25. I916.

Patented May 9, 1916.

2 SHEETS-SHEET! H. M. McCASLlN.

FIRE EXTINGIHSHER.

APPLICATION HLED FEB. 25. 1916.

Patented May 9, 1916.

2 SHEETS-SHEET 2.

THE COLUMBIA PLANOGRAPH co., wAsmNuTON, D. c.

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HARRYM. MoCASLIN, F ELMIRA NEw YORK, ASSIGNOR TO AMERICAN LA FRANCE FIRE ENGINE COMPANY, OF ELMIRA, NEW YORK, A CORPORATION OF NEW YORK.

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To all whom it may concern Be it known that I, HARRY MCCASLIN, a citizen of the United States, residing at Elmira, in the county ofChemung and State of New York, have invented certain new and useful Improvements in Fire-Extinguishers, of which the following is a full and clear specification.

The. present invention relates to an improved acid holder for the type of fire extinguishers in which there is an alkaline solution carried by a tank anda quantity of acid carried in a separate smaller recepta cle in the tank, so as to be mixed with the alkaline solution. for creating a gas for forcing liquidthrough a suitable discharge opening. I 1

The acid holder of the present invention comprises a bottle shaped receptacle formed upon opposite sides with supporting lugs whichengage inoppositely inclined slots, formed in the depending arms ofa yoke, which projects from the screw cap of the extinguisher. A stopper normally closing the acid bottle is mounted upon the inner end of a screw stem which is threaded through a central opening in the cap. A yoke engages the screw stem above the stopper and is suitably connected with the acid bottle, so that when the stopper is removed from the bottle the yoke is actuated for raising the bottle in its support and tipping it over for pouring its contents into the alkaline solution of the tank. The main advantages of the improved arrangement are simplicity in construction and sureness of operation. With this type of extinguisher there is great danger of the bearing faces of the relatively movable parts corroding, so as to make it difficult to move them. With the positive screw action for removing the stopper and tipping the acid bottle in its support, the action will. be sure in spite of possible interference by corrosion.

In order that my invention may be fully understood I will first describe the same with reference to the accompanying drawings and afterward point out the noveltymore particularly in the annexed claims.

In said drawings, Figure 1 is a side elevation, partly in section, of the improved acid bottle support; Figs. 2, 3 and lare views taken at right angles to Fig. 1, showing the acid bottle in three positions, which it sumes during operation.

Specificationof Letters Patent.

,threadedcap and also acts hereinafter referred to.

Patented May 9, 1916.

Application filed February 25, 1916. Serial No. 80,425.

Th'e stem, 10 has a threaded portion, indi cated' at 13, which engages the internal screw thread of the nipple 5. The packing 14 surrounds the stem 10 at the outer end of nipple and is confined by the screw. cap 15,1threaded upon the external threads 16 of nipplew5; The stem is also formed with an annular collar 17, which limits the outward movement of the stem through the 20 is a bottle supporting yoke comprising the two outwardly presented braced arms 21, connected by the cross bar 22, which is centrally perforated to fit over the inner extension of nipple 5 upon which it is rigidly secured by the threaded nut 25, engaging the external thread 26 of said inner extension of the nipple, Each of the yoke arms 21 is formed adjacent to its lower end with the oppositely inclined slots 30, 31, the slot 30 being closed while the slot 31 is open at its upper end upon one edge of the arm 21 35 is the acid containing bottle formed upon opposite sides with pins or lugs 36, 37, which engage and workin the slots 30, 31 just referred to. The bottle 35 is preferably cut away slightly to form flattened faces 35 upon opposite sides near the bottomto afford proper space for the ends of the operating yoke arms. The bottle may also be cut away slightly, as shown at 35 to enable the operating yoke to rest compactly between the bottle and supporting arms.

is the operating yoke formed at its up per end with an offset lug 4.1 through which the stopper operating stem 10 passes. The yoke is confined upon stem 10 between the stopper 12 and collar 17. The yoke 40 has two parallel arms 42 which rest normally in the cut out faces 35 of bottle 35, the lower ends of the arms being offset slightly and perforated to receive the pins or lugs 36 of upon the yoke,

the bottle, the lower ends of the arms resting upon the flattened faces 35 of the bottle.

The device is shown in its normal closed position in Figs. 1 and 2 of the drawings. When it is desired to use the extinguisher, the operator screws the stem10 to the right with the result that the stopper 12 Will be raised out of the mouth of the 'bottle 85 and when the stopper engages the yoke 40 cause the yoke to lift the bottle 35 in the guide lo 31, h ir oppo e a u ar r la i a sing th o le to g ad lly p, a ho n i Fi 3, unt it b m er fa anced and tips completely over into the position shown in Fig. a, with the result that the acid is dumped out of the bottle into the alkaline solution.

I claim:

1. The combination with an extinguisher head carrying a bottle supporting frame,

of a bottle movably mounted in said frame;

a stopper closing the bottle stopper operating means and suitable means connected with th tt e nd s pper o r n m ans a d a apte o first raise nd h t t bottle in its Support.

2. The, combination with an extinguisher head carrying a bottle supporting frame, of l a b t mo ab y m un d in d m a operating screw threaded in said head and ar ying he S p r, and eans Op a by said screw for raising and tilting the bottle in the frame.

3. The combination with an extinguisher head, having a bottle supporting yoke frame formed with oppositely inclined slots, a bottle having lugs engaging the slots of said supporting frame, and an operating yoke connected with the bottle and adapted to raise it in its support to cause it to tip over therein.

at. The combination with an extinguisher head carrying a bottle supporting yoke, said yoke having parallel arms formed with inclined slots, a bottle having oppositely presented trunnion lugs engaging said slots, and means for raising and tilting said bottle in its slotted support. I V

5. The combination with an extinguisher head carrying a bottle supporting yoke, said HARRY MQMCGASLIN.

Copies of this patent, m be ohtainerl fer 1 y? cents each, by addressing the Go m1nissioner of Iatents Washington, D. c. 

